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Akira Iguchi
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Osaka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Process for producing pyridine bases
Patent number
5,237,068
Issue date
Aug 17, 1993
Koei Chemical Company, Limited
Shinkichi Shimizu
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Regeneration of catalysts by burning in the presence of alcohols
Patent number
5,071,802
Issue date
Dec 10, 1991
Sumitomo Chemical Co., Ltd.
Shinkichi Shimizu
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing pyridine bases
Patent number
4,810,794
Issue date
Mar 7, 1989
Koei Chemical Co., Ltd.
Shinkichi Shimizu
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for preparing nitriles
Patent number
4,778,890
Issue date
Oct 18, 1988
Koei Chemical Co., Ltd.
Shinkichi Shimizu
C07 - ORGANIC CHEMISTRY